Mathematics - 21 August 2006

2006-08-21 23:48:34 · 5 answers · asked by strider hiryu 1

There are 200 questions on a 3 hr examination. Among these
questions are 50 mathematics problems. It is suggested that
twice as much time be spent on each math’s problem as for each
other question. How many minutes should be spent on mathematics
problems

2006-08-21 23:45:56 · 10 answers · asked by sudhish n 1

2006-08-21 22:59:00 · 7 answers · asked by ? 2

2006-08-21 22:34:56 · 18 answers · asked by ? 2

The Greeks used terms like 'Deca' for 10, 'Hecto' for 100, 'Kilo' for 1000, 'Mega' for Million etc. up to 'Yotta' for 10 followed by 24 zeros. This is an example to large numbers. They have names for smaller numbers too. 'Deci', Centi', 'Milli', etc. If Islam really discovered the use of Maths then their system would have original words from an Arabic language. If anyone has knowledge of this please reply.

2006-08-21 22:16:25 · 24 answers · asked by Anonymous

2006-08-21 21:27:33 · 16 answers · asked by del_bos 2

I have 2 questions :)
1. Antidifferentiate (X+1)^2 / X
2. Antidifferentiate 2X+1/ X+1

Please show working out, Thanks!

2006-08-21 20:51:02 · 5 answers · asked by Anonymous

2006-08-21 20:14:30 · 5 answers · asked by sciencelearner101 1

Hello, what is the formula to convert from inch to foot-inch?
for example: 61"=5'-1". I can get the basic 61/12=5.08 feet, but im not sure how to get .08 into 1". Is it just a matter of rounding it off, or is there a more accurate way?

2006-08-21 19:44:12 · 11 answers · asked by byanfu 1

a geologist collected 10 specimen of basaltic rock and 10 specimens of granite.an assistant randomly selects 15 of the specimen for analysis.

a) what's the pmf of the # of granite specimes?

b) what's the probability that all specimens of one of the two types of rock are selected for analysis?

c) what is the probability that the number of granite specimens selected for analysis is within 1 devistation of its mean value.




here're the answers from the back of the book
a) h(x,15,10,20) x=5...10
b) .0325
c) .697


My question is how to approach and solve part C only

thanks a bunch.

2006-08-21 19:25:26 · 3 answers · asked by hyesp24 1

Nine persons went to a hotel for taking their meals . Eight of
them spent Rs.12 each on their meals and the ninth spent Rs.8 then
the average expenditure of all the nine. What was the total money
spent by them?

2006-08-21 18:45:24 · 18 answers · asked by sudhish n 1

2006-08-21 18:16:29 · 6 answers · asked by greaseymikey 1

We are looking for statistical treatment to use in our research to determine the reliable number of samples to test.

2006-08-21 17:48:06 · 2 answers · asked by jm_september09 1

2006-08-21 17:41:36 · 6 answers · asked by Anonymous

DH has tried to explain this repeatedly, but with no success (it's too much like a "crooked bellboy" problem, and my math phobia kicks in). Anyone out there want to do a lot of work for 2 lousy points, keeping in mind that you'll have to keep it at about a grade school level so I can understand it? Or point me towards a site that can go verrrrryyyyy sllooooooowwwly? Thanks!

2006-08-21 17:30:10 · 10 answers · asked by samiracat 5

Math

2006-08-21 17:18:25 · 14 answers · asked by Anonymous

im in 7th grade, learing algebra, cant get a damn thing right. help plz.pythagorean thereom,right triangle, hypothenuse-5, adjecent-4, opposite-3, wat's the value of the trigometric ratio of sin A, tan B,cos B, cos A, sin B, and tan B?????

2006-08-21 17:10:15 · 8 answers · asked by Holly♥ 2

Math homework

2006-08-21 17:07:54 · 15 answers · asked by mikelangelo 1

A yacht sails 16 km on a bearing 196° followed by 8 km on a bearing 137°

I would like to calculate the distance (in km to the nearest 0.1 km)and bearing (to the nearest degree) of the yacht's final position from its initial position.

Any help would be greatly appreciated yet again

2006-08-21 17:04:57 · 5 answers · asked by zz06 3

This is really a card game question but since no one there knew the answer I figured I'd ask it here. If 4 cards are dealt from a standard 52 card deck, what are the chances that the 4 card hand will contain at least one Ace and at least one 2. Also, what is the formula for figuring the anser out.

2006-08-21 16:40:11 · 8 answers · asked by mysticman44 7

thank you!

2006-08-21 16:37:46 · 25 answers · asked by cer 2

2006-08-21 16:36:27 · 10 answers · asked by zero4549 2

When x3+3x2-2x+7 is divided by x+1, the remainder is:

7
8
9
11
13
???

2006-08-21 16:33:11 · 17 answers · asked by azmattaz06 2

a truck recently disappeared with 3.6 million nickels. how much money in dollars was missing?

2006-08-21 16:12:44 · 20 answers · asked by Anonymous

This is a tension based problem:

Ftens = (4535.9 N) / [sine (30 degrees)] = ?

2006-08-21 16:01:02 · 3 answers · asked by likestoplaywithsquirrels 3

Two forces have magnitudes of 50 N and 29 N and the angle between them is 67°.

I would like to find the magnitude of the resultant in newtons and the angle it makes with the larger of the two forces in degrees

Any help would be greatly appreciated.

2006-08-21 15:57:06 · 8 answers · asked by zz06 3

An empty fuel tank of a car was filled with A type petrol.when the tank was half empty,it wass filled with B type petrol.again when the tank was half-empty,it was filled with A type petrol.when the tank was half empty again,it was filled with B type petrol.what is the percentage of A type petrol at present in the tank?

2006-08-21 15:54:29 · 8 answers · asked by sudhish n 1

A round cylindrical water tank 10 m high has a volume of 125.6 m3 (meters cubed). Find the diameter of the tank.

Could you show me HOW it is done too? Thanks.

2006-08-21 15:53:24 · 5 answers · asked by Anonymous

2006-08-21 15:50:52 · 11 answers · asked by redpja 1

A man borrowed Rs X from 2 money lenders for 6 months with an interest of Rs Y .

and Rs Z.Finally he had to clear a debt which was double the amount that he borrowed.so finally what was the compound interest that has been gained by the lender?

2006-08-21 15:44:18 · 4 answers · asked by sudhish n 1